Lighting device
US8998435B2 · kind B2 · utility
4Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Jan 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0066
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a lighting device (10), comprising a multistage lens (1, 2, 3), which spectrally and spatially collimates the transmitted light (5, 6). The illumination device is particularly well suited for use in a display unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.